[1]徐磊,谭福忠,师臣,等.黑龙江省西部干旱区玉米产量与产量构成因素的相关性分析[J].黑龙江农业科学,2020,(07):1-6.[doi:10.11942/j.issn1002-2767.2020.07.0001]
　XU Lei,TAN Fu-zhong,SHI Chen,et al.Correlation Analysis of Maize Yield and Yield Components in Arid Area of Western Heilongjiang Province[J].HEILONGJIANG AGRICULTURAL SCIENCES,2020,(07):1-6.[doi:10.11942/j.issn1002-2767.2020.07.0001]
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黑龙江省西部干旱区玉米产量与产量构成因素的相关性分析

《黑龙江农业科学》[ISSN:1002-2767/CN:23-1204/S] 卷: 期数: 2020年07期 页码: 1-6 栏目: 出版日期: 2020-07-10
Title:
Correlation Analysis of Maize Yield and Yield Components in Arid Area of Western Heilongjiang Province
作者:
徐磊1; 谭福忠1; 师臣1; 周长军1; 郑巍1; 齐国超1; 陈刚2;  于海峰2
1.黑龙江省农业科学院 大庆分院，黑龙江 大庆163316；2.大庆市农业农村局 农业农村社会事业服务中心，黑龙江 大庆163000
Author(s):
XU Lei1; TAN Fu-zhong1; SHI Chen1; ZHOU Chang-jun1; ZHENG Wei1; QI Guo-chao1; CHEN Gang2; YU Hai-feng2
1.Daqing Branch of Heilongjiang Academy of Agricultural Sciences,Daqing 163316,China;2.Agricultural and Rural Social Service Center of Daqing Agricultural and Rural Bureau,Daqing 163000,China
关键词:
农艺性状; 相关分析; 通径分析; 回归分析
Keywords:
agronomic traits;  correlation analysis;  path analysis;  regression analysis
DOI:
10.11942/j.issn1002-2767.2020.07.0001
文献标志码:
A
摘要:
为探究黑龙江省西部干旱区玉米杂交种主要农艺性状对产量的影响，本试验采用随机区组设计，对12个玉米材料主要农艺性状与产量进行多元统计分析。结果表明：通过相关性分析，产量与单穗粒重呈极显著正相关,与出籽率和穗粗均呈显著正相关；通过偏相关分析，产量与出籽率呈极显著正偏相关,与单穗粒重呈显著正偏相关。在多元线性回归分析中单穗粒重、出籽率、穗行数与产量的复相关系数R=0.965，决定系数 R2=0.932，说明此3个性状可以主导93.2%玉米产量的变异，因此建立最优回归方程为Y=-28.344+0.349X4+0.290X7+63.064X8；在通径分析中单穗粒重对产量的直接影响最大，其次是出籽率，说明单穗粒重、出籽率是直接影响玉米产量的重要性状。综上，在该区域选择高产玉米品种时，应注重选择出籽率高和单穗粒重较大的杂交玉米品种。
Abstract:
In order to explore the effect of main agronomic traits on yield of maize hybrids in the arid area of western Heilongjiang Province,the main agronomic characters and yield of 12 maize materials were analyzed by random block design.The results showed that the yield was very significant positively correlated with the grain weight per ear and significant positively correlated with seed yield and ear diameter through correlation analysis.The yield was very significant positively correlated with seed yield,and significant positively partial correlated with grain weight per ear through partial correlation analysis.The multiple linear regression analysised that the complex correlation coefficient between grain weight per ear,seed yield,row number per ear and yield was R=0.965,and the determination coefficient R2=0.932,indicated that these three traits could dominate the variation of 93.2% maize yield.Therefore,the optimal regression equation was established as Y=-28.344+0.349X4+0.290X7+63064X8.In the path analysis,grain weight per ear had the greatest direct effect on yield,followed by seed yield,indicated that grain weight per ear and seed yield were important traits that directly affected maize yield.To sum up,when selecting high-yield maize varieties in this region,attention should be paid to the selection of hybrid maize varieties with high seed rate and larger grain weight per ear.

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备注/Memo

收稿日期：2020-05-08

基金项目：黑龙江省现代农业产业技术协同创新推广体系项目。
第一作者：徐磊（1985-），男，在读博士，副研究员，从事玉米育种与植物保护研究。E-mail：xulei-125@163.com。
通信作者：周长军（1977-），男，学士，副研究员，从事作物育种研究。E-mail：andazhouchangjun@163.com。

更新日期/Last Update: 2020-08-21